<!DOCTYPE html>
<html>
<head>
<title>Canvas学习</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<style type="text/css">
body { background: #dddddd; text-align: center; }
#canvas { margin: 0 auto; }
.tc { text-align: center; }
</style>
</head>
<body>
<canvas width="300" height="300" id="canvas"></canvas>
<script type="text/javascript" src="Js/clock.js"></script>
</body>
</html>